JPS5541015A - Signal processing method in high speed facsimile - Google Patents

Signal processing method in high speed facsimile

Info

Publication number
JPS5541015A
JPS5541015A JP11361478A JP11361478A JPS5541015A JP S5541015 A JPS5541015 A JP S5541015A JP 11361478 A JP11361478 A JP 11361478A JP 11361478 A JP11361478 A JP 11361478A JP S5541015 A JPS5541015 A JP S5541015A
Authority
JP
Japan
Prior art keywords
transmission
code
transmitted
document
video information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP11361478A
Other languages
Japanese (ja)
Other versions
JPS6322114B2 (en
Inventor
Norihiko Fukinuki
Hiroshi Yoshiki
Yumiko Shimazaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11361478A priority Critical patent/JPS5541015A/en
Priority to US06/076,426 priority patent/US4301479A/en
Publication of JPS5541015A publication Critical patent/JPS5541015A/en
Publication of JPS6322114B2 publication Critical patent/JPS6322114B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction
    • H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
    • H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
    • H04N1/419—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which encoding of the length of a succession of picture-elements of the same value along a scanning line is the only encoding step
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/36—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device for synchronising or phasing transmitter and receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

PURPOSE: To automatically enable to identify, transmit and decode the required part of document to be transmitted, by detecting specific mark attached to the document to be transmitted and replacing the scanning line unnecessary for the transmission into the video information less in the number of code bit.
CONSTITUTION: Marking is made to a given position of the part to be transmitted for the document screen, and the transmission of the normal code is stopped at the scanning line not necessary for transmission, judging from the scanning signal for this mark. Thus, the control section 11 gates and fetches the first white run with the start signal 12, and when it is detected that this is longer than a given length, the gate 10 is selected from the coder 6 to the special code generator circuit 9, and the video information less in the bit number such as the full white code, the fill code and synchronizing signal are fed to the MODEM 7. The reception picture is not recorded at the reception section and the paper is advanced. Since the transmission time is very short normally at the full white, the time can be reduced with selective transmission.
COPYRIGHT: (C)1980,JPO&Japio
JP11361478A 1978-09-18 1978-09-18 Signal processing method in high speed facsimile Granted JPS5541015A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP11361478A JPS5541015A (en) 1978-09-18 1978-09-18 Signal processing method in high speed facsimile
US06/076,426 US4301479A (en) 1978-09-18 1979-09-17 Signal processing system of facsimile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11361478A JPS5541015A (en) 1978-09-18 1978-09-18 Signal processing method in high speed facsimile

Publications (2)

Publication Number Publication Date
JPS5541015A true JPS5541015A (en) 1980-03-22
JPS6322114B2 JPS6322114B2 (en) 1988-05-10

Family

ID=14616673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11361478A Granted JPS5541015A (en) 1978-09-18 1978-09-18 Signal processing method in high speed facsimile

Country Status (2)

Country Link
US (1) US4301479A (en)
JP (1) JPS5541015A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58209107A (en) * 1982-05-03 1983-12-06 ザ・スタンダ−ド・オイル・カンパニ− Improved double layer energy storage device
JPS62237715A (en) * 1986-04-08 1987-10-17 旭硝子株式会社 Electric double-layer capacitor
JPS6378514A (en) * 1986-09-22 1988-04-08 旭硝子株式会社 New type electric double-layer capacitor
JPS6378513A (en) * 1986-09-22 1988-04-08 旭硝子株式会社 Electric double-layer capacitor
JPH0384915A (en) * 1989-08-29 1991-04-10 Nec Corp Electric double layer capacitor
JPH06338437A (en) * 1993-05-31 1994-12-06 Nec Corp Electric double layer capacitor

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5781779A (en) * 1980-11-11 1982-05-21 Nec Corp Method for compacting information of facsimile
US4471386A (en) * 1982-04-28 1984-09-11 Xerox Corporation Method and apparatus for composing documents for scanning
US4636869A (en) * 1983-01-18 1987-01-13 Dainippon Screen Mfg. Co., Ltd. Method and system for recording images in various magnification ratios
GB2172464B (en) * 1985-01-31 1989-02-01 Canon Kk Image transmission apparatus
US4716467A (en) * 1985-02-27 1987-12-29 Advanced Micro Devices, Inc. Speed-up method and apparatus for two-dimensional facsimile coding and decoding
FR2590431B1 (en) * 1985-11-18 1996-11-15 Ricoh Kk FACSIMILE REPRODUCTION MACHINE WITH PAGES PRINTING
JPH02179071A (en) * 1988-12-28 1990-07-12 Fuji Photo Film Co Ltd Picture compressor
FR2653958B3 (en) * 1989-10-31 1991-10-18 Applic Gles Electr Meca ENCODING, TRANSMISSION AND DECODING METHOD FOR FAXES, TRANSMISSION APPARATUS AND RECEIVING APPARATUS FOR CARRYING OUT SAID METHOD.
KR940008389A (en) 1992-09-30 1994-04-29 가나이 쯔또무 Image signal processing device and information transmitting / receiving device using the same
JPH07112298B2 (en) * 1993-05-21 1995-11-29 日本電気株式会社 Mobile communication system
US5636294A (en) * 1994-08-09 1997-06-03 Unisys Corporation Method and apparatus for truncation of images during data compression
US6433894B1 (en) * 1998-10-07 2002-08-13 Motorola, Inc. Data transfer within a communication system
US7111168B2 (en) * 2000-05-01 2006-09-19 Digimarc Corporation Digital watermarking systems
US20020106131A1 (en) * 2001-02-02 2002-08-08 Toshiba Tec Kabushiki Kaisha Apparatus and method for encoding image data
US20020106132A1 (en) * 2001-02-02 2002-08-08 Toshiba Tec Kabushiki Kaisha Apparatus and method for encoding image data
US7054039B2 (en) * 2001-07-31 2006-05-30 James Burke Fax confirmation device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS494966A (en) * 1972-04-26 1974-01-17

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3061672A (en) * 1960-07-25 1962-10-30 Sperry Rand Corp Run length encoder
JPS5122308A (en) * 1974-08-20 1976-02-23 Oki Electric Ind Co Ltd Fuakushimirinadono soshindensohoshiki
JPS5819185B2 (en) * 1976-10-29 1983-04-16 沖電気工業株式会社 Information compression facsimile device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS494966A (en) * 1972-04-26 1974-01-17

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58209107A (en) * 1982-05-03 1983-12-06 ザ・スタンダ−ド・オイル・カンパニ− Improved double layer energy storage device
JPS62237715A (en) * 1986-04-08 1987-10-17 旭硝子株式会社 Electric double-layer capacitor
JPH0332203B2 (en) * 1986-04-08 1991-05-10 Asahi Garasu Kk
JPS6378514A (en) * 1986-09-22 1988-04-08 旭硝子株式会社 New type electric double-layer capacitor
JPS6378513A (en) * 1986-09-22 1988-04-08 旭硝子株式会社 Electric double-layer capacitor
JPH0384915A (en) * 1989-08-29 1991-04-10 Nec Corp Electric double layer capacitor
JPH06338437A (en) * 1993-05-31 1994-12-06 Nec Corp Electric double layer capacitor

Also Published As

Publication number Publication date
JPS6322114B2 (en) 1988-05-10
US4301479A (en) 1981-11-17

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